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Valid floating license option fv not found in license file
Error: /usr/local/Fluent.Inc/fv/data/license.dat

Resolution: Assuming you have installed fieldview into: /usr/local/Fluent.Inc/fv

1.Copy the SERVER line in your Fluent license file to:

2.Add the line,...

Error Message: Can't find path for shared library: (or any one of the libhoops files)

Resolution: Make sure you have a Fluent.Inc/lib directory which is a symbolic link to Fluent.Inc/lib3.0.

Error: When starting POLYFLOW, an error message is generated complaining that a library is not found, such as /Fluent.Inc/polyflow3.12.2/lnamd64/libs/libname....

NOTE: For some users, those libraries exist elsewhere and are found via the PATH variable; for other users they are not found.

Any of the following libaries could cause an...

Problem Description: After updating openSuSE to 10.3 and trying to run Gambit you receive a libxcb error.
libxcb: WARNING! Program tries to unlock a connection without having acquired a lock first, which indicates a programming error.
There will be no further warnings about this issue.
gambit: xcb_lock.c:77: _XGetXCBBuffer: Assertion `((int) ((xcb_req) - (dpy->request)) >= 0)' failed.

Resolution: This is an issue with XCB and not Gambit.

Please see the following post for more information on this error and how to resolve it. At the bottom of the post is a description of how to...

When trying to create an mpeg file within FLUENT it tries to write the mpeg, but cannot, giving the following error code: mpeg_encode: relocation error: mpeg_encode: symbol errno, version GLIBC_2.0 not defined in file with link time reference Removing frame files ... done.

Resolution: Please download a newer mpeg_encode file, unzip it, and place it in contriblnamd64 location. Please note that it is a 32 bit executable and can be used for lnx86 platform as well. The...

Trying to launch TGRID after installing FLUENT 12 or ICEPAK 12 you receive this error:
Bad version number - must be floating point number, with no letters
FLEXnet Licensing error:-77,131
For further information, refer to the FLEXnet Licensing End User Guide

Comments: This is a bug caused by a newer license library that gets installed when you install either ICEPAK or FLUENT 12 after you have installed TGRID. This will be fixed at some...

When launching FLUENT you receive the following error:
CX_Client_Register: Unrecognized host: local host
The fluent process could not be started.

Resolution: Check your /etc/host file as it should contain information to localhost, for example: localhost localhost.localdomain

You might also need to put in your IP Address with...

mpid: Cannot create shared memory segment of of bytes

Problem Description: When running FLUENT on a large number of processors and you are using HPMPI on a Linux cluster the job fails with the following error message 'mpid: Cannot create shared...

When launching FLUENT in parallel I get this error:
fluent_mpi.6.3.26: Rank 0:0: MPI_Init: Can't initialize RDMA device
fluent_mpi.6.3.26: Rank 0:0: MPI_Init: MPI BUG: Cannot initialize RDMAComments:

Can't initialize RDMA device error indicates an incompatible HPMPI or OFED version with FLUENT.

OFED 1.2 needs HPMPI so you will need to be running Fluent 6.3.35

Determining what OFED...

Error while loading shared libraries: cannot open shared object file: No such file or directory

Resolution 1: llibdevtools is distributed with FLUENT. Be sure it is there with the command find Fluent.Inc -name If it is not in the Fluent.Inc/fluent6.3.26/vki/ARCH...

When trying to launch FLUENT in parallel on a SUN HPC system you receive the following error: Error: vendor/vendor interconnect/MPI combination not available on this system Please consult user's guide for availability or for vendor MPI, ensure that vendor MPI is installed.

Resolution: You will need download and install the HPC Cluster Tools from SUN. Visit and do a search for "ClusterTools". For Fluent 6.3.x.x you can use either SUN HPC...

GAMBIT crashes when Meshing a Face in the GUI. Error 1: Using default visual with OPENGL_DEVICE_DRIVER. Received X Intrinsics Warning . OR Error 2: function call "wait_percent()" in

Problem Description: When trying to mesh a face in GAMBIT on Linux 64-bit you receive the following error or errors:

Error 1: Using default visual with OPENGL_DEVICE_DRIVER.
Received X Intrinsics...

When starting up Airpak on lnamd64 you receive an error "error while loading shared libraries: wrong ELF class: ELFCLASS32".


1.Install 32-bit version of Airpak 3.0.16
2.Set FLUENT_ARCH manually to lnx86 ( 32-bit).
Resolution: This issue has been resolved in a beta version of Airpak 3.0.17.

When launching FLUENT you receive the following error: Segmentation fault $NO_RUN $EXE_CMD $CX_FLAGS

Resolution 1 : This error is usually a DNS or hosts file issue. Check your /etc/hosts file and verify that your IP Address is correctly mapped to your hostname. Verify that the host name in the...

Error message: fluent_mpi.6.3.26: Rank 0:0: MPI_Init: ibv_create_qp() failed
fluent_mpi.6.3.26: Rank 0:0: MPI_Init: Can't initialize RDMA device

On some operating systems the default amount of physical memory that can be pinned/locked by a user application is set to a low value and must be explicitly increased. A value recommended by Intel...

Attempting to launch FLUENT (any version) you receive this or a similar error: /ansys_inc/v140/fluent/fluent14.0.0/bin/fluent: line 2609: 22706 Segmentation fault $NO_RUN $CORTEX_PRE $EXE -f $FLUENT_PROD $CX_FLAGS "$CX_FUNCTION"

Hit return to exit.

Resolution 1 : Check Xll Forwarding

Ensure that X11 forwarding is enabled ('ssh -X' when logging in using a terminal or, if accessing through Putty, under the menu...

When trying to launch FLUENT in network parallel you receive the following error: /ansys_inc/v120/fluent/fluent12.0.16/multiport/mpi_wrapper/bin/mpirun.fl: line 1941: default_run: command not found.

This is the result of not having the FLUENT installation directory exported and accessible by all compute nodes. This is usually and most efficiently done by installing FLUENT on one system and...

Error Message:
/usr/local/..../fluent6.3.26/cortex/lnamd64/cortex.3.6.6: error while loading shared libraries: cannot open shared object file: No such file or directory

The file should be in /usr/lib64. If it is not there, install the standard C++ compatibility libraries.

For RHEL4 the product code is: compat-libstdc++-33-3.2.3-47

Problem Description 1: You are able to run multiple serial processes of FLUENT but when you try to run a parallel job you receive this error: "Unable to spawn node: license not available". The behavior has only been seen on lnamd64 and lnia64 platforms.
Problem Description 2: Multiple fluentlm-helper processes are started as the number of parallel compute nodes increase.

Both issues are probably related to the fluentlm-helper which sometimes has hardware issues. A new license library was built that does not use the fluentlm-helper.

Fluentlm-helper translates...

Error: Could not find feature gambit in license file(s).
Even though there is a gambit FEATURE line in the license file, the above error message is displayed.

Resolution 1: The license file went through a DOS machine and each line ends with an extra carriage return. This will show up as ^M at the end of each line when the vi editor is used to look at...

Connect to address XXXXXXX: connect to address XXXXXXX: Connection refused connection refused
trying normal rsh (/usr/bin/rsh)

This usually means that ssh or rsh is not working between all nodes in the cluster.

If you use rsh to communicate between nodes, take /usr/kerberos/bin out of your search path so /usr/bin/rsh...

Unable to determine machine architecture.
Set the environment variable FLUENT_ARCH and try again.

You may be running the wrong startup script.

Instead of running:

you should run:

Error while loading shared libraries: or

rpm -qa |grep openmotif

The file or should be in /usr/X11R6/lib64. If it is not there, install the 64-bit as well as the 32-bit Motif shared libraries needed to run the...

RPC Error when starting MixSim

In the Unix world, most Fluent products (FLUENT, FLPost, MixSim, etc.) run in client/server mode, and therefore require TCP/IP for interprocess communications. On Windows platforms, most of the...

Fluent: The application failed to initialize properly (0xc0150002). Click on OK to terminate the application.

FLUENT 6.3.26 64-bit requires at least the Microsoft .NET Framework 2.0 (Service Pack 1) libraries. FLUENT will not launch without this. The error is shown below. You can download the latest which...